Prof. Gabi Ben-Dor
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Professor
Department :
Department of Mechanical Engineering
Room :
Phone :
Email :
bendorg@bgu.ac.il
Office Hours :
Education
B.Sc. 1971-1975 Ben-Gurion University of the Negev - Department of Mechanical Engineering - Beer Sheva, Israel
Graduated Cum Laude
M.Sc. 1975-1976 Ben-Gurion University of the Negev - Department of Mechanical Engineering - Beer Sheva, Israel
Name of advisor: Prof. Ozer Igra
Title of thesis: Design of a Piston Driven Shock Tube
Graduated Cum Laude
Ph.D. 1976-1978 Institute for Aerospace Studies (UTIAS) - University of Toronto, Toronto, Ontario, Canada
Name of advisor: Prof. Irvine Israel Glass
Title of Thesis: Regions and Transitions of Non-Stationary Oblique Shock Wave Diffractions in Perfect and Imperfect Gases.
P.D. 1978-1979 Institute for Aerospace Studies (UTIAS) - University of Toronto, Toronto, Ontario, Canada
Name of advisor: Prof. Irvine Israel Glass
Area of research: Implosion Wave Induced Fusion
Research Interests
Shock wave reflection in steady, pseudo-steady and unsteadyflows. Shock wave propagation in dust-gas suspensions. Shock wave interaction with flexible and rigid porous materials. Transport phenomena in porous media. Start/unstart phenomenon in supersonic nozzles. Turbulent mixing (Kelvine-Helmholtz, Rayleigh-Taylor and Richtmeyer-Meskov instabilities). Protective Technologies. Penetration.
Research Projects
Shock wave induced turbulent mixing. Planar and spherical shock waves attenuation in dust-gas suspensions. Waves in multi-phase media. Shock waves propagation in porous and granular media. Application of shock dynamics and perturbation theory to shock wave reflection phenomena. Protective technologies. Penetration.
Research Abstract
Shock wave reflection in steady flows
: Analytical, experimental and numerical investigations of shock wave reflections in steady, pseudo steady and unsteady flow. In the steady case special attempts are made to better understand the hysteresis phenomena in the transition process between regular and Mach reflection wave configurations
Protective Structures
: Experimental investigations of structure respond to short duration dynamic loads are conducted using a pendulum and shock tubes. The experimental results are used to calibrate our numerical codes. The codes will then be used to simulate the respond of structures to blast loads in field experiments
Shock-wave-induced urbulent mixing
: Experimental, numerical and analytical investigations of shock wave induced turbulent mixing. In particular the Kelvine-Helmholtz (KH), the Rayliegh-Taylor (RT) and the Richtmyer-Meshkov (RM) instabilities are studied. The RM instability investigation includes the thickness and rate of growth of the mixing zone of two gases (light/heavy or heavy/light) as induced by either the incident or the end-wall head-on reflected shock wave in a shock tube. The KH instability investigation deals with the turbulent mixing that is developed along the slipstream (contact discontinuity) of the triple point of a Mach reflection
Wave propagation in cellular (porous and granular) media
: Analytical, numerical and experimental investigations of waves propagation in and interaction with flexible or rigid, saturated or partially saturated porous and granular media